In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

[Q]: The rose-ringed parakeet ( " Psittacula krameri " ) , also known as the ring-necked parakeet , is a medium-sized parrot in the genus Psittacula , of the family Psittacidae .
[A]: The rose-ringed parakeet is " Psittacula krameri " .


[Q]: Oxygen saturation ( symbol S ) is a relative measure of the concentration of oxygen that is dissolved or carried in a given medium as a proportion of the maximal concentration that can be dissolved in that medium .
[A]: Oxygen saturation or dissolved oxygen ( DO ) is a relative measure of the amount of oxygen that is dissolved in a given medium .


[Q]: In protists , vacuoles have the additional function of storing food which has been absorbed by the organism and assisting in the digestive and waste management process for the cell .
[A]:
In protists , vacuoles also store and help digest food that the protist ate .


